NZQA registered unit standard 26642 version 2 Page 1 of 3

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NZQA registered unit standard
26642 version 2
Page 1 of 3
Title
Evaluate and troubleshoot civil engineering laboratory aggregate
production tests
Level
5
Purpose
Credits
14
This unit standard is one of a series relating to aggregate
testing and senior technician level knowledge and skills.
People credited with this unit standard are able to: evaluate
results of civil engineering laboratory aggregate production
tests; and troubleshoot abnormal civil engineering laboratory
aggregate production test scenarios and results.
Classification
Infrastructure Civil Engineering > Infrastructure Laboratory
Available grade
Achieved
Entry information
Recommended skills
and knowledge
Unit 26637, Perform civil engineering laboratory aggregate
production tests, or demonstrate equivalent knowledge and
skills.
Explanatory notes
1
Applicable legislation, regulations, rules, standards and codes include but are not
limited to the: Health and Safety in Employment Act 1992; Health and Safety in
Employment Regulations 1995; Hazardous Substances and New Organisms Act
1996 and their associated regulations and subsequent amendments;
ISO/IEC 17025:2005 General requirements for the competence of testing and
calibration laboratories, available from http://www.iso.org/iso/store.htm;
NZS 4402.1:1986 Methods of testing soils for civil engineering purposes - Preliminary
and general, available from http://www.standards.co.nz.
2
Evidence is required for a minimum of five civil engineering laboratory aggregate
production tests, which may include but are not limited to – California Bearing Ratio,
NZ standard, NZ heavy, NZ vibrating hammer, maximum density, minimum density,
wet sieve (particle size), dry sieve (particle size), average least dimension, rip rap
grading, broken faces, sand equivalent, liquid limit cone, liquid limit casagrande,
plastic limit, lightweight, aggregates, unit density.
3
Definitions
Evaluate refers to interpreting test results in terms of the relevant test method, client
processes and the project. The evaluation must identify options for corrective action
and the scientific basis for these corrective actions. Components will vary between
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
26642 version 2
Page 2 of 3
tests and include but are not limited to – the evaluation of task performance,
compliance with organisational and test method requirements, from sample and
equipment preparation to the calculation and reporting of results.
Organisational requirements refer to instructions to staff on policy and procedures
which are formally documented or generally accepted at the worksite. This may
include legislation; industry standards and methods; national and international
standards and methods; customer/organisation developed methods; standard
operating procedures; specifications; manuals; and manufacturer’s information.
Problem-solving techniques may include but are not limited to – cause and effect
diagrams, hypothesis testing, appreciative enquiry, process flowchart analysis.
Scenario refers to an actual situation with contributing factors; these factors may
include environment, conditions, materials, circumstances, location, relevance, site,
context, status, work place.
Troubleshoot refers to identifying problems in test scenarios and results, and to
applying a problem-solving technique suitable to the problem in terms of the relevant
test method, client processes and project to reach a realistic solution.
Outcomes and evidence requirements
Outcome 1
Evaluate results of civil engineering laboratory aggregate production tests.
Evidence requirements
1.1
The results are evaluated in accordance with organisational requirements.
Range
may include but is not limited to – non-conformance, corrective
action taken.
Outcome 2
Troubleshoot abnormal civil engineering laboratory aggregate production test scenarios
and results.
Evidence requirements
2.1
Abnormal test scenarios are troubleshot to identify the nature of the problem,
effective problem solving techniques are applied, and a valid solution is reached
in accordance with organisational requirements.
2.2
Abnormal test results are troubleshot to identify the nature of the problem,
effective problem solving techniques are applied, and a valid solution is reached
in accordance with organisational requirements.
Planned review date
Infrastructure ITO
SSB Code 101813
31 December 2019
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
26642 version 2
Page 3 of 3
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
21 January 2011
31 December 2016
Review
2
19 February 2015
N/A
Consent and Moderation Requirements (CMR) reference
0101
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Infrastructure ITO [email protected] if you wish to
suggest changes to the content of this unit standard.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
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